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Corel Ventura Ruthenica, 2003, 13(1): 53-74. ©Ruthenica, 2003 Review of the Recent species of Ocenebra Gray, 1847 and Ocinebrellus Jousseaume, 1880 in the Northwestern Pacific R. HOUART*, B. I. SIRENKO** *Research Associate, Institut royal des Sciences naturelles de Belgique, rue Vautier, 29, 1000 Bruxelles, BELGIUM. E-mail: [email protected] **Zoological Institute of the Russian Academy of Sciences, Universitetskaya nab. 1, St.-Petersburg, 199034 RUSSIA. E-mail: [email protected] ABSTRACT. The generic position of O. acanthopho- means that the character was observed in a few cases ra (A. Adams, 1863), Ocenebra inornata (Récluz, but not in all specimens. 1851), O. lumaria (Yokoyama, 1926) and Ocinebrellus falcatus (Sowerby, 1834) is discussed. The geographi- Other abbreviations: cal distribution in the northwestern Pacific is given for each species. BM(NH): The Natural History Museum, Lon- don, U.K. MNHN: Muséum national d’Histoire naturelle, Paris, France. Introduction SMF: Forschunginstitut Senckenberg, Frankfurt, Germany. The starting point of this paper was a set of USNM: National Museum of Natural History, apparently different ocenebrine species from the Washington, D.C., U.S.A. Northwestern Pacific sent for identification and ZISP: Zoological Institute of the Russian Aca- comments. After having compared this material with demy of Sciences, St. Petersburg, Russia. specimens stored in the Zoological Institute of the UMUT: The University Museum, The Universi- Russian Academy of Sciences, in the RH collection, ty of Tokyo, Japan. and with specimens illustrated in recent publications, RH: collection of Roland Houart. it appeared necessary to classify these species in an ad.: adult specimen. adequate genus before discussing the geographical juv.: juvenile specimen. range of each species in the studied area, the aim of al.: alcohol preserved specimen. this paper. lv.: live collected specimen. Different names, both generic, subgeneric and dd.: dead collected specimen. specific, have been used during the past years to designate all these species [Vokes, 1971; Fair, 1976; Yoo, 1976; Radwin, D’Attilio, 1976; Kaicher, 1978, Taxonomy 1979, 1980; Choe, Park, 1997; Amano, Vermeij, 1998; Tsuchiya, 2000, and others], leaving a very Family MURICIDAE Rafinesque, 1815 intricate classification. Subfamily OCENEBRINAE Cossmann, 1903 Ocenebrine species are characterized by having a shell with a usually ventrally sealed siphonal canal (however, it is open in a few genera), and a D-shaped, Genus Ocenebra Gray, 1847 purpuroid operculum with a nucleus in lower right. The radula (Fig. 8 C-F) has a rachidian tooth with Type species by monotypy: Murex erinaceus a broad, fairly long, weakly or strongly prominent Linnaeus, 1758. Recent; Europe. central cusp and long lateral cusps at each side. Each = Tritonalia Fleming, 1828 (suppressed, ICZN lateral cusp is flanked by inner and outer lateral opinion 886) denticles. They are followed by a series of serrated Ocenebra is here used for three species instead marginal denticles, preceding a short or fairly long of Ocinebrellus, Ceratostoma or Pteropurpura as marginal cusp. done by previous authors (see references under O. Description: the terminology used here is largely inornata). The shell morphology and measurements based on Merle [1999, 2001] (Fig. 1). The spiral in O. acanthophora, O. inornata and O. lumaria are sculpture was carefully studied in all the specimens. closer to Ocenebra than to Ocinebrellus (see Tables However, no special attention was given to the aper- 2-6): the shell of Ocinebrellus is broader (spines tural denticles which are low or absent in many cases. included) then in Ocenebra, the aperture is smaller The terminology is occasionally put in brackets, this (length and breadth), and the siphonal canal is com-.
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